| Sachiya Yamasaki | |
| Position: | Pitcher |
| Team: | Hokkaido Nippon-Ham Fighters |
| Number: | 18 |
| Bats: | Left |
| Throws: | Left |
| Birth Date: | 9 September 1992 |
| Birth Place: | Tokorozawa, Saitama, Japan |
| Debutleague: | NPB |
| Debutdate: | March 29 |
| Debutyear: | 2015 |
| Debutteam: | Orix Buffaloes |
| Statyear: | 2023 season |
| Stat1label: | Win–loss record |
| Stat1value: | 39-45 |
| Stat2label: | Earned Run Average |
| Stat2value: | 3.85 |
| Stat3label: | Strikeouts |
| Stat3value: | 431 |
| Teams: |
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| Awards: | |
is a Japanese professional baseball pitcher for the Hokkaido Nippon-Ham Fighters of Nippon Professional Baseball (NPB).[1] [2]